1685
13
84
2391
16
31
1450
13
22
450
4
22
853
12
18
647
13
17
984
8
14
1150
16
14
1003
22
12
313
0
10
255
5
10
618
7
9
197
2
8
474
4
8
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Keyword(s): 算数 数学